It's alike in a way, but also different, I adopted the two classes method of shadow slave to give monsters a wide range of versatility and room for growth while also maintaining the significance of each rank.
Author the set up seems interesting but the writing of first chapter and character traits seems not well suited for this set up of world building. It would better for either dump strong Mc or smart calculative Mc. The current Mc seems naive, idealistic. I will give it try and see where it goes.